Process for finishing wood surfaces



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u m nl il lllA A l lllluhmluuzm JAMES C. HILTZ, F BOSTON, MASSACHUSETTS, ASSIGNOR OF ONE-SIXTH TO REGII'JALD IIILTZ,`0F BRKLINE, MASSACHUSETTS, AND TWO-SIXTHS T0 WILLIAM G. KIR- TON, 0F BOSTON', MASSACHUSETTS.

QPR-OGESS FOR FINISHING W'OOD SUB/FACES.

applicati-on filed October 5, 1921. Serial No. 505,613.

To all whom z5 may concer/n Be it known that I, JAMES C. HILTZ, a citizen of the United States, and resident of loston, county of Suffolk, and Commonwealth of Massachusetts, have invented an Improvement in Processes for Finishing lVood Surfaces, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts, A This invention relates to the art of wood finishing and its object is to improve the art generally, and particularly to provide a process for so finishing wood surfaces that the close grained and open grained sections or areas thereof may be finished in clearly defined contrasting colors.

In the drawings of conventional strips of wood finished according to my novel process and submitted for illustrative purposes,

F ig. l represents a strip of any suitable wood as chestnut with the close grained surface finished in black, and the open grained surface in some contrasting light color, as white; and

Fig. 2, a similar strip with the close grained surface finished in white, and the open grained surface finished in a contrasting color as black.

In the practice of my novel process, after the wood surface has been made suitably smooth as by sandpapering, I first apply a suitable coloring agent, as a. penetrating stain, with special reference to the close grained surface as, Fig. l, black. Such a stain may be of any darli colo-r, and may comprise lamp black, and as a vehicle or penetrating agent therefor, a suitable salt, as copperas mixed in proper proportion.

I then apply the stain preferably with a sponge or soft brush, and, after it has dried, protect or seal it with a coat of any suitable sealing agent, as white varnish, which is also allowed to become fully dry. rIhe varnish sometimes leaves a more or less soft surface, and to provide a harder' surface upon which to further work, I may use shellac instead of varnish or apply a second coat of sealing agent as a light coat of shellac over the varnish. Then I sandpaper lightly with very fine sandpaper.

The first coloring agent will substantially fill the close gra-ined area l, Fig. l, but will not completely fill the open grained surface 2, nor will the coat or coats of sealing agent do so.

I then prepare a second coloring agent which may be termed a filler of desired shade for the open grained surface 2, and may be of any suitable material. For instance, if white be desired, as a contrasting color for the black, I may use white lead dissolved in a suitable quantity of oil. I first preferably, but not necessarily, prepare the wood surface so that the filler will spread smoothly thereon by rubbing it with a cloth dampened with a little neutral white oil, or vaseline or even lard oil. This second coloring agent or filler is then applied generally to the surface of the wood across the grain and well rubbed in.

llfhile, as stated, the sealing coat of varnish has effectively filled and sealed the close grained surface, it has not filled the open grained surface, and this surface therefore, is still sufficiently open to receive a liberal quantity of the second coloring agent or filler. The surface of the wood is next carefully wiped, removing the color entirely from the filled, close grained surface, and leaving sufficient in the open grained surface to present it in a clear eut contrasting color. This coat is then allowed to dry thoroughly.

The second coloring agent or filler is then sealed by a second coat of white varnish, wax or other suitable material and further finished by rubbing, or as may be desired.

If it be desired to finish the close grained area in a light color as white, Fig. 2, the said area l, may be stained with any suitable stain as lithophin and white shellac, then sealed as above described. The open grained surface, 2, F ig. 2, may then be filled with a suitable black filler as white lead, oil and black color, as lamp black in the manner described. l

It will be understood that my reference above to the use of black and white stains and colors is only illustrative of one way of practicing my invention. Any combination of colors that can be procured can be reproduced in the finish of the wood by the above process with remarkable and beautiful artistic effects.

Heretofore, so far as I am aware, no one has succeeded in finishing wood surface in two clearly defined contrasting colors.

When the second color has been applied by common methods, it has always become more 0r less mixed or sinooched with the first, By my novel processof securely sealing the rst coloring agent before applying the second, a clear and distinct presentation of the vtwo colors is obtained.

Claim The process of inishing Wood surface inl asealing agent, coating the sealed surface with an oily substance, applying)r a coloring agen-tonto the oiled surface to 11 the open grained surface, 'removing the second co1- orng agent from the close grained surface,

and sealing the remaining second coloring agent.

In testimony whereof, I have signed my naine to this speclcatlon.

JAMES C. HILTZ. 

